Calais Fire/E.M.S. Chief Dan Carlow hands his U.S. passport to a Canadian border officer as he drives the department's Ladder Truck #1 into St. Stephen, N.B., at the Milltown crossing last year.

Posted July 16, 2012, at 6:43 p.m.

CALAIS, Maine — Because of emergency repairs being done to the Milltown railroad crossing, the Milltown border crossing between Calais, Maine, and St. Stephen, New Brunswick, will be unavailable for use until about 4 p.m. Tuesday, July 17.

All passenger cars are instructed to use alternate ports of entry in the Calais-St. Stephen area, according to a press release issued Monday afternoon by U.S. Customs and Border Protection.

The Ferry Point port of entry is approximately one mile downstream and is available to all passenger vehicles and pedestrians, according to the release. The International Avenue port of entry is approximately one mile upstream and is available to all passenger vehicles and commercial trucks.

The U.S. Customs and Border Protection release indicated that appropriate staff levels will be in place at the alternate ports to process the increase in traffic as expeditiously as possible.